Milbank’s “Tears of a Clown: Glenn Beck and the Tea Bagging of America” has sold fewer than 1,600 copies nationwide since it was released Oct. 5, according to a source with knowledge of the figures.

Milbank’s publicist, Todd Doughty, declined to confirm a figure. “Random House does not release sales figures as a corporate policy,” he said.

Doughty said 38,700 copies of Milbank’s book have been printed.

The summary of the book says Milbank “exposes [Beck] as the guy who is single-handedly giving patriotism a bad name.”

“The wildly popular Fox News host with 3 million daily viewers perfectly captures the vitriol of our time and the fact-free state of our political culture,” the description on Amazon.com reads. “The secret to his success is his willingness to traffic in the fringe conspiracies and Internet hearsay that others wouldn’t touch with a ten-foot pole: death panels, government health insurance for dogs, FEMA concen­tration camps, an Obama security force like Hitler’s SS.”